@charset "UTF-8";
body {
  margin: 0;
  padding: 0;
  border: 0;
  background-color: #fff;
  /* 定义元素最小宽度，若内容大于最小宽度，则最小宽度不生效。反之则应用最小宽度 */
  min-width: 1200px;
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC",
    "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei",
    sans-serif;
  font-size: 14px;
  line-height: 1.5;
  display: block;
}
h1,
div,
ul,
li {
  margin: 0;
  padding: 0;
  border: 0;
}
a {
  text-decoration: none;
  color: #333;
}
ol,
ul,
li {
  list-style: none;
}

*,
*:before,
*:after {
  box-sizing: border-box;
}
.header:before {
  content: "";
  position: absolute;
  top: 24px;
  right: 0;
  left: 50%;
  height: 40px;
  background: #f8f8f8;
  z-index: -1;
}
.wrapper {
  width: 1200px;
  padding: 0 5px;
  margin: 0 auto;
}

.header-content {
  height: 80px;
}

.logo {
  float: left;
  margin: 15px 0 0 0;
  padding: 0;
}

.logo a {
  display: block;
  width: 200px;
  height: 50px;
  text-indent: -9999px;
  /* CSS4特性：根据用户设备分辨率匹配合适的图像 */
  background-image: image-set(
    url(../images/logo.png) 1x,
    url(../images/logo@2x.png) 2x
  );
}
.header-right {
  float: right;
  width: 940px;
  height: 40px;
  background-image: image-set(
    url(../images/train.png) 1x,
    url(../images/train@2x.png) 2x
  );
  background-repeat: no-repeat;
  margin: 24px 0 0 0;
}
.search {
  float: left;
  width: 380px;
  margin: 5px 0 5px 90px;
}
.search-bd {
  width: 350px;
}
.search-input {
  width: 100%;
  float: left;
  border-radius: 0;
  height: 30px;
  line-height: 20px;
  border: 1px solid #dedede;
  padding: 4px 10px;
  background-color: #fff;
  color: #333;
  outline: none;
  font-size: 14px;
  /* 将border和padding包含在width和height里 */
  box-sizing: border-box;
  transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s,
    -webkit-box-shadow ease-in-out 0.15s;
}
input::placeholder {
  color: rgb(130, 128, 128);
}
.search-btn {
  background-color: rgb(59, 153, 252);
  width: 30px;
  height: 30px;
  /* 转换为手型鼠标 */
  cursor: pointer;
  float: left;
  text-align: center;
  color: #fff;
  text-decoration: none;
  line-height: 30px;
}
.menu {
  float: right;
  padding-right: 10px;
}
.menu-item {
  float: left;
  margin-left: 10px;
  height: 40px;
  line-height: 40px;
  font-size: 12px;
}
.menu-nav-hd {
  color: #3b99fc;
  display: block;
  height: 40px;
  line-height: 40px;
}
.menu-line {
  color: #acd1f9;
}
.caret {
  margin-left: 5px;
  width: 0;
  height: 0;
  line-height: 0;
  font-size: 0;
  overflow: hidden;
  border-width: 5px;
  border-style: solid dashed dashed dashed;
  border-color: #acd1f9 transparent transparent transparent;
  border-bottom: none;
  cursor: pointer;
}
.ml {
  margin-left: 10px;
}
.nav-box {
  height: 40px;
  background-color: #3b99fc;
  font-size: 14px;
}
.nav {
  width: 1190px;
  height: 40px;
  margin: 0 auto;
}
.nav-item {
  float: left;
  width: 145px;
  height: 40px;
  line-height: 40px;
  text-align: center;
}
.nav-link {
  display: block;
  color: #fff;
  height: 40px;
}
.nav-item.active {
   background: #2676e3;
}
.nav-item a:hover {
    background: #3685EC;
}

.icon-down{
  display: inline-block;
  vertical-align: top;
  font-size: 12px !important;
  margin-left: 8px;
  -webkit-transition: 0.3s linear transform;
  transition: 0.3s linear transform;
}

.banner {
    height: 450px;
}
.swiper {
  width: 100%;
  height: 450px;
  --swiper-pagination-color: #fff;
  --swiper-pagination-bullet-inactive-opacity: 0.6;
  --swiper-pagination-bullet-inactive-color: #f8f8f8;
}
.swiper-pagination-bullet {
  width: 12px !important;
  height: 12px !important;
  margin: 0 6px !important;
}
